Overview and Highlights FZJ Andreas Lehrach, FZJ and RWTH Aachen - - PowerPoint PPT Presentation

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Overview and Highlights FZJ Andreas Lehrach, FZJ and RWTH Aachen - - PowerPoint PPT Presentation

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Overview and Highlights FZJ Andreas Lehrach, FZJ and RWTH Aachen Subtopic coordinator ARD ST2 March 6 th , 2019 5 th Annual MT Meeting Helmholtz Institute Jena 1 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach Outline I

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  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Andreas Lehrach, FZJ and RWTH Aachen

Subtopic coordinator ARD ST2

Overview and Highlights FZJ

March 6th, 2019 5th Annual MT Meeting Helmholtz Institute Jena

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SLIDE 2
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Outline Introduction Progress

First deuteron EDM measurement at COSY Technical developments for proton EDM ring Developments at COSY for HESR and EDM Novel polarized proton source

Conclusion & Plans

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  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Measurements of charged particle EDMs from COSY to a prototype and final EDM storage ring

  • Ideal starting point for R&D work
  • Deliver first direct EDM

measurement for deuterons

  • Prototype EDM ring
  • Energy 35 - 45 MeV, CW-CCW beams
  • Pure electric and combined E/B
  • Length roughly 100m

Stepwise Approach for EDM

Cooler Synchrotron COSY Prototype EDM Ring  Design of a final EDM storage ring

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SLIDE 4
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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HIGHLIGHT: FIRST DEUTERON EDM MEASUREMENT PRECURSOR EXPERIMENT AT COSY

Copper electrodes Ferrite cage Belt drive for 90° rotation Vacuum vessel Beam position monitor

Waveguide RF Wien filter Glance into its inside Installation in COSY Commissioning: Spin rotation First ever deuteron EDM measurement

EDM Limits for COSY: Statistical sensitivity:

10-(23-24) e∙cm

Systematics due to Imperfections & alignment:

~ 10-19 e∙cm

EDM Precursor Experiment at COSY

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SLIDE 5
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Design Study for Prototype EDM Ring

Beam Parameter for PT EDM Ring

  • A. Lehrach, S. Martin, R.M. Talman,

Design of a Prototype EDM Storage Ring, PoS(SPIN2018) 144.

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SLIDE 6
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Challenge: Investigate/demonstrate the feasibility of ExB deflector for deuteron EDM storage ring with 10 MV/m and 0.3 T. Study breakdown behavior in presence of magnetic fields

Static ExB deflector

Commissioning in April this year

Different shapes of electrodes will be tested

Electrodes Feed- Throughs Actuators Shield-Tighteners

Setup of electrodes using existing ANKE Magnet Simulation of electron trajectories

with E field with ExB field

By

+

  • +
  • B-field: 0 T

Deflector Development

B-field: 0.15 T

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SLIDE 7
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Stochastic Cooling

HESR slot-ring couplers

  • 1,5
  • 1
  • 0,5

0,5 1 5 10 15 17:16:48 17:19:41 17:22:34 17:25:26 17:28:19 17:31:12

beam current horizontal / vertical beam-size in mm time

PANDA Cluster-Target with Stochastic Cooling

without cooling with cooling

Successfully tested with PANDA cluster target at COSY

Plans:

  • Further development of the

slot ring couplers in terms

  • f aperture limitation,

frequency range and resonant design

  • Development of algorithms

to adjust stochastic cooling while cooling is in operation

  • Study of cooling structures

for colliding beams

  • Stochastic cooling with

weak focusing EDM lattice

Courtesy: Rolf STASSEN (FZJ) Poster by Nikolay SHURKHNO (FZJ)

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SLIDE 8
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Plans:

Modeling

  • Cooler hardware
  • Cooling process
  • Compensation schemes

Improve transverse cooling Move 2 MeV cooler to HESR

– Benefits heavy ion operation

2438200 2438260 2438340 f / MHz

PANDA cluster target (reduced thickness, 3∙1014) e-cooling with 0.6 A

2438175 2438250 2438350 f / MHz

Successful electron cooling down to dP/P = 3.85∙10-5 Ie = 0.6 A, with barrier bucket P = 2425 MeV/c

Best e-cooling performance observed with fast stochastic transverse pre-cooling

10 min

Electron Cooling

Courtesy: Seva KAMERDZIEV (FZJ) Poster by Arthur HALAMA (FZJ)

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SLIDE 9
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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10 min

Precision Beam Control

Plans:

  • Beam instrumentation for HESR
  • Beam instrumentation developments for EDM

Enhanced orbit control

– Novel BPMs for EDM

Development @

– New BPM electronics – Orbit correction software

Automatic correction & feedback Developed together with industry partners

Tune measurement during ramping

Detailed and time-correlated archiving of beam parameters

Tune feedback in flat top and during acceleration Courtesy: Bernd LORENTZ (FZJ)

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SLIDE 10
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Prototyping and Beam Physics

EDM accelerator component tests and experiments with spin at COSY

Deflector Development Beam and Spin Dynamics Siberian Snake COSY Polarized Ion Source

MT MT MT

2 MV Electron Cooler

MT

Prototype RF Wien Filter

MT

Beam Position Monitor Waveguide RF Wien Filter

MT & MU MU MU

Ion Source for ELENA at CERN

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SLIDE 11
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Build in cooperation: IKP 2 and 4, PGI-6, and University of Crete

Method described in:

  • T. P. Rakitzis,

Chem.Phys.Chem. 5, 1489 (2004)

Lamb-Shift polarimeter

For measurement of nuclear polarization

  • R. Engels et al., Rev.Sci.Instrum. 74, 4607 (2003)

Nozzle

For HCl gas jet

IR/UV Laser

For photo-dissociation & polarization of H atoms, 100 mJ @ 1064 nm, 20 mJ @ 213 nm, 5 Hz, 170 ps

Development of a Novel Polarized Source

Nuclear polarized H atoms from HCl gas jet

Principle Assembly at IKP

Start of measurements: May 2018

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SLIDE 12
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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  • Participation in ATHENAh:

Polarized targets for proton and ion acceleration (and maybe, electrons)

Simulation results: Development of polarized targets:

  • Participation in ATHENAe:

kHz Betatron radiation source

Injection of as electron bunches from nm-sized solid targets into a wake field

Simulation results: Development of cluster targets:

Two new laser systems (JuSPARC I):

  • (40 mJ / 30 fs / 1 kHz)

for SOFT X-RAY MAGNETO OPTICS

  • (50 µJ / 100 fs / 10 MHz) for PHOTOELECTRON SPECTROSCOPY

Cooperation partners: FZJ, HHUD, WWU, Univ. of Crete, SIOM

Nuclear polarized H atoms from HCl jet Proton spin rotation during TNSA acceleration

Laser-Plasma Acceleration

Talk by Anna HÜTZEN (FZJ)

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SLIDE 13
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Conclusion:

  • First deuteron EDM measurement at COSY
  • Conceptional design of Prototype EDM Ring
  • Technical developments (Deflector, BPMs, …)
  • Successful beam test at COSY for HESR and EDM

Plans:

  • Push limit for Deuteron EDM measurement at COSY
  • R&D work and technical design for prototype and final EDM storage ring
  • Advanced phase-space cooling and beam control for FAIR (and EDM)
  • Development of a novel polarized source

Conclusion & Plans

Deliverables for EDM Storage Rings:

  • Scientific Input for The European Strategy for Particle Physics (ESPP)
  • Executive Summary to CERN Physics Beyond Colliders (PBC)
  • Design Report for Proton EDM Ring
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SLIDE 14
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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Approach: EDM search in time development of spin in a storage ring: A magic storage ring for protons (electrostatic), deuterons, and helium-3 “Freeze“ horizontal spin precession; watch for development of a vertical component !

Search for Electric Dipole Moments

particle p (GeV/c) E (MV/m) B (T) proton 0.701 16.789 0.000 deuteron 1.000

  • 3.983

0.160

3He

1.285 17.158

  • 0.051

One machine with r ~ 30 m B

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SLIDE 15
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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  • All Dipoles produced, tested in Jülich and 65% are delivered to FAIR
  • Quadrupoles are all produced in Jülich
  • Two assembly lines for the quadrupole groups in the arcs are in

preparation

  • Sextupoles, steerers and their power converters are in

production(Romania), magnets arriving continuously in Jülich

  • Nearly all other power converters are produced, in Jülich.
  • RF equipment is in mechanical design
  • Stochastic cooling equipment, Beam diagnostics and Injection

kickers are in production

Status of HESR at FAIR

High-Energy Storage Ring (HESR) in time and budget

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SLIDE 16
  • A. Lehrach

5th Annual MT Meeting, March 5-7, 2018, Jena HZB

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20 mJ @ 213 nm 100 mJ @ 1064 nm Alignment of HCl bonds Photo-dissociation and polarization of the H nucleus Acceleration of the protons in gas jet 300 J @ 800 nm ~ c

lide 16

Production of Polarizted Proton Beams